Ultrasounds

Howmany people have a confirmation ultrasound? My doctor doesn't do that, were having our first ultrasound in 2 weeks at 19 weeks. A lot of girls I know who don't have a regular doctor and start at clinics all have "confirmation" ultrasounds. I feel kinda left out. We do plan on doing an elective ultrasound later in the pregnancy, other the diss gnostic one is the only time we get to see the baby before the birth. How many ultrasounds have you had/are going to have?